Universal mounting



Nov. 28, 1939.

H. w. EVANS UNIVERSAL MOUNTING Filed Oct. 18,1937

Inventmr' Harald W Evan5 Patented Nov. 28, 1939 (Granted under theact of March a, 1883, as amended April 30, 1928; 370 0. G. 757) The invention described herein may be manufactured and used by or for the Government forv governmental purposes, without the payment to and which will afiord ample movement for the member to be pointed.

The invention is characterized by the employment of a large and a small cylinder, the small cylinder being mounted in the large cylinder on an axis perpendicular to the axis of the large cylinder and remote therefrom.

To these and other ends, the invention consists in the construction, arrangement and combination of elements described. hereinafter and pointed out in the claim forming a part of this specification.

A practical embodiment of the invention is illustrated in the accompanying drawing, Where- Fig. 1 is a'longitudinal sectional view of a mounting constructed in accordance with the invention.

Fig. 2 is a view in front elevation.

Fig. 3 is .a sectional view on the line 3-3 of Fig. 1.

There is shown a portion of an armored wall 5 which is provided with a rectangular opening 6 for receiving a relatively large hollow cylinder 1 constituting a shield and having its axis disposed hcrizontally and substantially in the plane of the opening. The parallel sides of the cylinder are provided with aligned trunnions 8-8 which are axial of the cylinder and are mounted in bearings 9-9 fixed to the inside of the wall 5 on opposite sides of the opening 6.

The rear portion of the cylinder which is disposed on the inner side of the wall 5 is cut away as shown at It! (Fig. 1), so that access may be had to the interior of the cylinder. The front or outer portion of the cylinder is preferably formed with a flat face H which is provided with a rectangular opening l2.

A relatively small hollow cylinder l3 constituting a cradle is disposed in the opening l2 with its axis arranged vertically and substantially in the plane of the opening l2. The parallel top annular lip l8. The cylinder 13 includes a rearand bottom ends of the cylinder are provided with aligned trunnions 14-44 which are mounted in bearings l5--l5 fixed to the inside of the fiat face H on opposite sides of the opening l2.

The rear portion of the cylinder I3 is cut away 5 as indicated at Hi to give access to its interior. The front or outer portion of this cylinder is provided with an opening 11 and a projecting wardly extending bracket l9 having spaced aligned apertures -20 in its rear extremities. A pin 2| inserted in the apertures serves to attach an instrument to be pointed such as a gun 22 whose barrel or barrel jacket 23 passes through theopening l1 and is supported therein. The cradle cylinder is provided with an opening 24 for accommodating an auxiliary instrument, such as a telescope.

In order to move the gun in traverse, it is only necessary to act horizontally on its breech end and cause the cradle cylinder I3 to be rotated on its trunnions l4. In order to move the gun in elevation, the operator acts vertically on the gun, and the cradle cylinder l3 transmits this pressure to cause the shield cylinder 1 to rotate on its trunnions 8. These movements may be combined and the gun can be freely pointed in any direction within the limits imposed by the structure.

I claim:

In a-gun mounting, a relatively fixed support having a rectangular opening, a shield consisting of a hollow cylindrical wall with parallel side walls having trunnions axial of the cylinder, said shield disposed inthe opening of the support with the trunnions of the shield substantially in the plane of the! opening, means on the support for mounting the trunnions of the shield, said cylindrical wall having a. rectangular opening, a cradle consisting of a hollow cylindrical wall with parallel top and bottom walls having trunnions axial of the cylinder, said cradle disposed in the opening of the shield, means on the shield for mounting the cradle trunnions adjacent the opening in the shield with the axis of the cradle trunnions remote from the axis of the shield trunnions whereby the cradle trunnions are movable in an are through the opening in the fixed support and are normally disposed forwardly of the support.

HAROLD W. EVANS. 

